Abstract：
:Non-volcanic tremor is a weak, extended duration seismic signal observed episodically on some major faults, often in conjunction with slow slip events. Such tremor may hold the key to understanding fundamental processes at the deep roots of faults, and could signal times of accelerated slip and hence increased seismic hazard. The mechanism underlying the generation of tremor and its relationship to aseismic slip are, however, as yet unresolved. Here we demonstrate that tremor beneath Shikoku, Japan, can be explained as a swarm of small, low-frequency earthquakes, each of which occurs as shear faulting on the subduction-zone plate interface. This suggests that tremor and slow slip are different manifestations of a single process.
journal_name
Naturejournal_title
Natureauthors
Shelly DR,Beroza GC,Ide Sdoi
10.1038/nature05666subject
Has Abstractpub_date
2007-03-15 00:00:00pages
305-7issue
7133eissn
0028-0836issn
1476-4687pii
nature05666journal_volume
446pub_type
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